What project 1265 buys
Project 1265 SubTDS The first effort of the overall SubTDS program focuses on delivering full ICL functionality to all submarines in the fleet via the ADC MK5 effort. The ADC MK5 incorporates new adaptive technologies in a three-inch diameter form factor and will evolve through software/hardware upgrades, improved mobility, combat control system integration via ICL, and enhanced functionality to counter advancing torpedo threats. ADC MK6 effort focuses on developing an ECL hosted 6-inch acoustic countermeasure to supersede the ADC MK3. PMS415 STEB effort is limited to the development of changes to the ICL, specifically the breech door, to provide a stand-alone power and communications capability to the payload through the ICL via a TEMPALT, with funding ending in FY 2026.
- Product Development
- Test and Evaluation
- Management Services
Project 1265 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 17.2 |
| FY2026 | Enacted | 19.2 |
| FY2027 | Request | 20.4 |
| FY2028 | Outyear | 17.7 |
| FY2029 | Outyear | 13.0 |
| FY2030 | Outyear | 13.1 |
| FY2031 | Outyear | 13.3 |
2 accomplishments / planned programs
The R-2A exhibit — the only level of the budget that describes work that has not happened yet. Activities carry the prior, current and budget year only, no five-year plan. 1 of them describes FY2027 work in enough detail to have its own page; the rest are shown here in full. Coverage is partial across the corpus, so count activities, never total them.
-MK5 DT/OT -Continue deliveries of MK5 LRIP units -Continue MK6 Prototype Development
Read the FY2027 plan →FY2026 to FY2027 change Funding decrease from FY 2026 to FY 2027 by $0.555M due to scope of work completion for STEB in FY 2026.
FY2026 plans — current year - Continue efforts to design, prototype, and qualify the ICL breech door that enables pre/post-launch connectivity with a STEB.
Named performers on project 1265
Performers named in the R-3 exhibit under this project. Share is of the project's whole FY2027 R-3 total — the same denominator the program-element split uses, so the two read on one scale and will not sum to 100% when unnamed or government work is in the mix. Budget-justification contract funding, not obligations.